package com.example.tests;

import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertThat;
import java.util.Random;
import org.testng.annotations.Test;
import com.example.utils.SortedListOf;

public class ContactModificationTests extends TestBase{
	
	@Test(dataProvider = "randomValidContactGenerator")
	public void modifySomeContact(ContactData contact){
		//save old state 
		SortedListOf<ContactData> oldList = app.getModel().getContacts();
		
		if (oldList.size() == 0){
			list.subList(1, list.size()).clear();
			throw new Error("There're not some contacts on the home page");
		}
		
		Random rnd = new Random();
		int index = rnd.nextInt(oldList.size());
		
		//actions
		app.getContactHelper().modifyContact(index,contact);
				
		//save new state
		SortedListOf<ContactData> newList = app.getModel().getContacts();
						
		//compare states
		assertThat(newList, equalTo(oldList.without(index).withAdded(contact)));
	}
}
